import router from './router'
import store from './store'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, removeToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
NProgress.configure({ showSpinner: false }) // NProgress Configuration
const whiteList = ['/login'] // no redirect whitelist
router.beforeEach(async(to, from, next) => {
    // start progress bar
    NProgress.start()
        // set page title
    document.title = getPageTitle(to.meta.title)
        // determine whether the user has logged in
    const hasToken = getToken()
    if (hasToken) {
        if (to.path === '/login') {
            // if is logged in, redirect to the home page
            next({ path: '/' })
            NProgress.done()
        } else {
            const hasGetUserInfo = store.getters.roles && store.getters.roles.length > 0
            if (hasGetUserInfo) {
                next()
            } else {
                try {
                    // get user info
                    const data = await store.dispatch('user/getInfo');
                    const accessRoutes = await store.dispatch('permission/generateRoutes', data)
                    router.addRoutes(accessRoutes)
                    next({...to, replace: true })
                } catch (error) {
                    // remove token and go to login page to re-login
                    await store.dispatch('user/resetToken')
                        // Message.error(error || 'Has Error')
                    next(`/login?redirect=${to.path}`)
                    NProgress.done()

                }
            }
        }
    } else {
        /* has no token*/
        removeToken()
        if (whiteList.indexOf(to.path) !== -1) {
            // in the free login whitelist, go directly
            next()
        } else {
            // other pages that do not have permission to access are redirected to the login page.
            next(`/login?redirect=${to.path}`)
            NProgress.done()
        }
    }
})
router.afterEach(() => {
    // finish progress bar
    NProgress.done()
})